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4c1fe027bb
dcrd/txscript/sign_test.go
Dave Collins 56219b2ef8
secp256k1: Make private key opaque. 
This modifies the PrivateKey type to be opaque and updates the internal
implementation of it to use the new ModNScalar type instead of a
big.Int.

It also modifies NewPrivateKey to accept the new ModNScalar type instead
of a big.Int and improves the PrivKeyFromBytes comment to explicitly
call out the semantics that realistically already existed when using the
value in calculations.

It is also worth noting that there are still a couple of internal
conversions to big.Int when dealing with signatures that are required
since that code still relies on them for now.  The goal is to eventually
update them to use the more efficient specialized types and this change
help facilitate that process.
2020-02-18 23:17:55 -06:00

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// Copyright (c) 2013-2016 The btcsuite developers
// Copyright (c) 2015-2020 The Decred developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package txscript
import (
"crypto/rand"
"errors"
"fmt"
mrand "math/rand"
"testing"
"github.com/decred/dcrd/chaincfg/chainhash"
"github.com/decred/dcrd/chaincfg/v3"
"github.com/decred/dcrd/dcrec"
"github.com/decred/dcrd/dcrec/edwards/v2"
"github.com/decred/dcrd/dcrec/secp256k1/v3"
"github.com/decred/dcrd/dcrec/secp256k1/v3/schnorr"
"github.com/decred/dcrd/dcrutil/v3"
"github.com/decred/dcrd/wire"
)
// testingParams defines the chain params to use throughout these tests so it
// can more easily be changed if desired.
var testingParams = chaincfg.RegNetParams()
const testValueIn = 12345
type addressToKey struct {
key []byte
sigType dcrec.SignatureType
compressed bool
}
func mkGetKey(keys map[string]addressToKey) KeyDB {
if keys == nil {
return KeyClosure(func(addr dcrutil.Address) ([]byte,
dcrec.SignatureType, bool, error) {
return nil, 0, false, errors.New("nope 1")
})
}
return KeyClosure(func(addr dcrutil.Address) ([]byte,
dcrec.SignatureType, bool, error) {
a2k, ok := keys[addr.Address()]
if !ok {
return nil, 0, false, errors.New("nope 2")
}
return a2k.key, a2k.sigType, a2k.compressed, nil
})
}
func mkGetKeyPub(keys map[string]addressToKey) KeyDB {
if keys == nil {
return KeyClosure(func(addr dcrutil.Address) ([]byte,
dcrec.SignatureType, bool, error) {
return nil, 0, false, errors.New("nope 1")
})
}
return KeyClosure(func(addr dcrutil.Address) ([]byte,
dcrec.SignatureType, bool, error) {
a2k, ok := keys[addr.String()]
if !ok {
return nil, 0, false, errors.New("nope 2")
}
return a2k.key, a2k.sigType, a2k.compressed, nil
})
}
func mkGetScript(scripts map[string][]byte) ScriptDB {
if scripts == nil {
return ScriptClosure(func(addr dcrutil.Address) (
[]byte, error) {
return nil, errors.New("nope 3")
})
}
return ScriptClosure(func(addr dcrutil.Address) ([]byte,
error) {
script, ok := scripts[addr.Address()]
if !ok {
return nil, errors.New("nope 4")
}
return script, nil
})
}
func checkScripts(msg string, tx *wire.MsgTx, idx int, sigScript, pkScript []byte) error {
tx.TxIn[idx].SignatureScript = sigScript
var scriptFlags ScriptFlags
vm, err := NewEngine(pkScript, tx, idx, scriptFlags, 0, nil)
if err != nil {
return fmt.Errorf("failed to make script engine for %s: %v",
msg, err)
}
err = vm.Execute()
if err != nil {
return fmt.Errorf("invalid script signature for %s: %v", msg,
err)
}
return nil
}
func signAndCheck(msg string, tx *wire.MsgTx, idx int, pkScript []byte,
hashType SigHashType, kdb KeyDB, sdb ScriptDB) error {
sigScript, err := SignTxOutput(testingParams, tx, idx, pkScript,
hashType, kdb, sdb, nil)
if err != nil {
return fmt.Errorf("failed to sign output %s: %v", msg, err)
}
return checkScripts(msg, tx, idx, sigScript, pkScript)
}
func signBadAndCheck(msg string, tx *wire.MsgTx, idx int, pkScript []byte,
hashType SigHashType, kdb KeyDB, sdb ScriptDB) error {
// Setup a PRNG.
randScriptHash := chainhash.HashB(pkScript)
tRand := mrand.New(mrand.NewSource(int64(randScriptHash[0])))
sigScript, err := SignTxOutput(testingParams, tx,
idx, pkScript, hashType, kdb, sdb, nil)
if err != nil {
return fmt.Errorf("failed to sign output %s: %v", msg, err)
}
// Be sure to reset the value in when we're done creating the
// corrupted signature for that flag.
tx.TxIn[0].ValueIn = testValueIn
// Corrupt a random bit in the signature.
pos := tRand.Intn(len(sigScript) - 1)
bitPos := tRand.Intn(7)
sigScript[pos] ^= 1 << uint8(bitPos)
return checkScripts(msg, tx, idx, sigScript, pkScript)
}
func TestSignTxOutput(t *testing.T) {
t.Parallel()
// make key
// make script based on key.
// sign with magic pixie dust.
hashTypes := []SigHashType{
SigHashAll,
SigHashNone,
SigHashSingle,
SigHashAll | SigHashAnyOneCanPay,
SigHashNone | SigHashAnyOneCanPay,
SigHashSingle | SigHashAnyOneCanPay,
}
signatureSuites := []dcrec.SignatureType{
dcrec.STEcdsaSecp256k1,
dcrec.STEd25519,
dcrec.STSchnorrSecp256k1,
}
tx := &wire.MsgTx{
SerType: wire.TxSerializeFull,
Version: 1,
TxIn: []*wire.TxIn{
{
PreviousOutPoint: wire.OutPoint{
Hash: chainhash.Hash{},
Index: 0,
Tree: 0,
},
Sequence: 4294967295,
ValueIn: testValueIn,
BlockHeight: 78901,
BlockIndex: 23456,
},
{
PreviousOutPoint: wire.OutPoint{
Hash: chainhash.Hash{},
Index: 1,
Tree: 0,
},
Sequence: 4294967295,
ValueIn: testValueIn,
BlockHeight: 78901,
BlockIndex: 23456,
},
{
PreviousOutPoint: wire.OutPoint{
Hash: chainhash.Hash{},
Index: 2,
Tree: 0,
},
Sequence: 4294967295,
ValueIn: testValueIn,
BlockHeight: 78901,
BlockIndex: 23456,
},
},
TxOut: []*wire.TxOut{
{
Version: wire.DefaultPkScriptVersion,
Value: 1,
},
{
Version: wire.DefaultPkScriptVersion,
Value: 2,
},
{
Version: wire.DefaultPkScriptVersion,
Value: 3,
},
},
LockTime: 0,
Expiry: 0,
}
// Pay to Pubkey Hash (uncompressed)
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
var keyDB, pkBytes []byte
switch suite {
case dcrec.STEcdsaSecp256k1:
privKey, _ := secp256k1.GeneratePrivateKey()
keyDB = privKey.Serialize()
pkBytes = privKey.PubKey().SerializeUncompressed()
case dcrec.STEd25519:
keyDB, _, _, _ = edwards.GenerateKey(rand.Reader)
_, pk := edwards.PrivKeyFromBytes(keyDB)
pkBytes = pk.SerializeUncompressed()
case dcrec.STSchnorrSecp256k1:
keyDB, _, _, _ = schnorr.GenerateKey(rand.Reader)
privKey := secp256k1.PrivKeyFromBytes(keyDB)
pkBytes = privKey.PubKey().SerializeCompressed()
}
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
address, err := dcrutil.NewAddressPubKeyHash(
dcrutil.Hash160(pkBytes), testingParams,
suite)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
if err := signAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, false},
}), mkGetScript(nil)); err != nil {
t.Error(err)
break
}
if err := signBadAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, false},
}), mkGetScript(nil)); err == nil {
t.Errorf("corrupted signature validated %s: %v",
msg, err)
break
}
}
}
}
// Pay to Pubkey Hash (uncompressed) (merging with correct)
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
var keyDB, pkBytes []byte
switch suite {
case dcrec.STEcdsaSecp256k1:
privKey, _ := secp256k1.GeneratePrivateKey()
keyDB = privKey.Serialize()
pkBytes = privKey.PubKey().SerializeUncompressed()
case dcrec.STEd25519:
keyDB, _, _, _ = edwards.GenerateKey(rand.Reader)
_, pk := edwards.PrivKeyFromBytes(keyDB)
pkBytes = pk.SerializeUncompressed()
case dcrec.STSchnorrSecp256k1:
keyDB, _, _, _ = schnorr.GenerateKey(rand.Reader)
privKey := secp256k1.PrivKeyFromBytes(keyDB)
pkBytes = privKey.PubKey().SerializeCompressed()
}
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
address, err := dcrutil.NewAddressPubKeyHash(
dcrutil.Hash160(pkBytes), testingParams,
suite)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
sigScript, err := SignTxOutput(
testingParams, tx, i, pkScript,
hashType, mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, false},
}), mkGetScript(nil), nil)
if err != nil {
t.Errorf("failed to sign output %s: %v", msg,
err)
break
}
// by the above loop, this should be valid, now sign
// again and merge.
sigScript, err = SignTxOutput(
testingParams, tx, i, pkScript,
hashType, mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, false},
}), mkGetScript(nil), sigScript)
if err != nil {
t.Errorf("failed to sign output %s a "+
"second time: %v", msg, err)
break
}
err = checkScripts(msg, tx, i, sigScript, pkScript)
if err != nil {
t.Errorf("twice signed script invalid for "+
"%s: %v", msg, err)
break
}
}
}
}
// Pay to Pubkey Hash (compressed)
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
var keyDB, pkBytes []byte
switch suite {
case dcrec.STEcdsaSecp256k1:
privKey, _ := secp256k1.GeneratePrivateKey()
keyDB = privKey.Serialize()
pkBytes = privKey.PubKey().SerializeCompressed()
case dcrec.STEd25519:
keyDB, _, _, _ = edwards.GenerateKey(rand.Reader)
_, pk := edwards.PrivKeyFromBytes(keyDB)
pkBytes = pk.SerializeCompressed()
case dcrec.STSchnorrSecp256k1:
keyDB, _, _, _ = schnorr.GenerateKey(rand.Reader)
privKey := secp256k1.PrivKeyFromBytes(keyDB)
pkBytes = privKey.PubKey().SerializeCompressed()
}
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
address, err := dcrutil.NewAddressPubKeyHash(
dcrutil.Hash160(pkBytes), testingParams,
suite)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
if err := signAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(nil)); err != nil {
t.Error(err)
break
}
if err := signBadAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(nil)); err == nil {
t.Errorf("corrupted signature validated %s: %v",
msg, err)
break
}
}
}
}
// Pay to Pubkey Hash (compressed) with duplicate merge
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
var keyDB, pkBytes []byte
switch suite {
case dcrec.STEcdsaSecp256k1:
privKey, _ := secp256k1.GeneratePrivateKey()
keyDB = privKey.Serialize()
pkBytes = privKey.PubKey().SerializeCompressed()
case dcrec.STEd25519:
keyDB, _, _, _ = edwards.GenerateKey(rand.Reader)
_, pk := edwards.PrivKeyFromBytes(keyDB)
pkBytes = pk.SerializeCompressed()
case dcrec.STSchnorrSecp256k1:
keyDB, _, _, _ = schnorr.GenerateKey(rand.Reader)
privKey := secp256k1.PrivKeyFromBytes(keyDB)
pkBytes = privKey.PubKey().SerializeCompressed()
}
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
address, err := dcrutil.NewAddressPubKeyHash(
dcrutil.Hash160(pkBytes), testingParams,
suite)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
sigScript, err := SignTxOutput(testingParams,
tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(nil), nil)
if err != nil {
t.Errorf("failed to sign output %s: %v", msg,
err)
break
}
// by the above loop, this should be valid, now sign
// again and merge.
sigScript, err = SignTxOutput(testingParams,
tx, i, pkScript,
hashType, mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(nil), sigScript)
if err != nil {
t.Errorf("failed to sign output %s a "+
"second time: %v", msg, err)
break
}
err = checkScripts(msg, tx, i, sigScript, pkScript)
if err != nil {
t.Errorf("twice signed script invalid for "+
"%s: %v", msg, err)
break
}
}
}
}
// Pay to Pubkey Hash for a ticket(SStx) (compressed)
for _, hashType := range hashTypes {
for i := range tx.TxIn {
msg := fmt.Sprintf("%d:%d", hashType, i)
privKey, err := secp256k1.GeneratePrivateKey()
if err != nil {
t.Errorf("failed to generate key: %v", err)
break
}
keyDB := privKey.Serialize()
pkBytes := privKey.PubKey().SerializeCompressed()
suite := dcrec.STEcdsaSecp256k1
address, err := dcrutil.NewAddressPubKeyHash(
dcrutil.Hash160(pkBytes), testingParams,
suite)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
pkScript, err := PayToSStx(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
if err := signAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(nil)); err != nil {
t.Error(err)
break
}
if err := signBadAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(nil)); err == nil {
t.Errorf("corrupted signature validated %s: %v",
msg, err)
break
}
}
}
// Pay to Pubkey Hash for a ticket change (SStx change) (compressed)
for _, hashType := range hashTypes {
for i := range tx.TxIn {
msg := fmt.Sprintf("%d:%d", hashType, i)
privKey, err := secp256k1.GeneratePrivateKey()
if err != nil {
t.Errorf("failed to generate key: %v", err)
break
}
keyDB := privKey.Serialize()
pkBytes := privKey.PubKey().SerializeCompressed()
suite := dcrec.STEcdsaSecp256k1
address, err := dcrutil.NewAddressPubKeyHash(
dcrutil.Hash160(pkBytes), testingParams,
suite)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
pkScript, err := PayToSStxChange(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
if err := signAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(nil)); err != nil {
t.Error(err)
break
}
if err := signBadAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(nil)); err == nil {
t.Errorf("corrupted signature validated %s: %v",
msg, err)
break
}
}
}
// Pay to Pubkey Hash for a ticket spending (SSGen) (compressed)
for _, hashType := range hashTypes {
for i := range tx.TxIn {
msg := fmt.Sprintf("%d:%d", hashType, i)
privKey, err := secp256k1.GeneratePrivateKey()
if err != nil {
t.Errorf("failed to generate key: %v", err)
break
}
keyDB := privKey.Serialize()
pkBytes := privKey.PubKey().SerializeCompressed()
suite := dcrec.STEcdsaSecp256k1
address, err := dcrutil.NewAddressPubKeyHash(
dcrutil.Hash160(pkBytes), testingParams,
suite)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
pkScript, err := PayToSSGen(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
if err := signAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(nil)); err != nil {
t.Error(err)
break
}
if err := signBadAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(nil)); err == nil {
t.Errorf("corrupted signature validated %s: %v",
msg, err)
break
}
}
}
// Pay to Pubkey Hash for a ticket revocation (SSRtx) (compressed)
for _, hashType := range hashTypes {
for i := range tx.TxIn {
msg := fmt.Sprintf("%d:%d", hashType, i)
privKey, err := secp256k1.GeneratePrivateKey()
if err != nil {
t.Errorf("failed to generate key: %v", err)
break
}
keyDB := privKey.Serialize()
pkBytes := privKey.PubKey().SerializeCompressed()
suite := dcrec.STEcdsaSecp256k1
address, err := dcrutil.NewAddressPubKeyHash(
dcrutil.Hash160(pkBytes), testingParams,
suite)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
pkScript, err := PayToSSRtx(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
if err := signAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(nil)); err != nil {
t.Error(err)
break
}
if err := signBadAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(nil)); err == nil {
t.Errorf("corrupted signature validated %s: %v",
msg, err)
break
}
}
}
// Pay to PubKey (uncompressed)
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
privKey, err := secp256k1.GeneratePrivateKey()
if err != nil {
t.Errorf("failed to generate key: %v", err)
break
}
keyDB := privKey.Serialize()
pk := privKey.PubKey()
suite := dcrec.STEcdsaSecp256k1
// For address generation, consensus rules require using
// a compressed public key. Look up ExtractPkScriptAddrs
// for more details
address, err := dcrutil.NewAddressSecpPubKeyCompressed(pk,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
if err := signAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, false},
}), mkGetScript(nil)); err != nil {
t.Error(err)
break
}
if err := signBadAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, dcrec.STEcdsaSecp256k1, false},
}), mkGetScript(nil)); err == nil {
t.Errorf("corrupted signature validated %s: %v",
msg, err)
break
}
}
}
}
// Pay to PubKey (uncompressed)
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
var keyDB, pkBytes []byte
var address dcrutil.Address
var err error
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
switch suite {
case dcrec.STEcdsaSecp256k1:
privKey, _ := secp256k1.GeneratePrivateKey()
keyDB = privKey.Serialize()
pk := privKey.PubKey()
// For address generation, consensus rules require using
// a compressed public key. Look up ExtractPkScriptAddrs
// for more details
address, err = dcrutil.NewAddressSecpPubKeyCompressed(pk,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
case dcrec.STEd25519:
keyDB, _, _, _ = edwards.GenerateKey(rand.Reader)
_, pk := edwards.PrivKeyFromBytes(keyDB)
pkBytes = pk.SerializeUncompressed()
address, err = dcrutil.NewAddressEdwardsPubKey(pkBytes,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
case dcrec.STSchnorrSecp256k1:
keyDB, _, _, _ = schnorr.GenerateKey(rand.Reader)
privKey := secp256k1.PrivKeyFromBytes(keyDB)
pkBytes = privKey.PubKey().SerializeCompressed()
address, err = dcrutil.NewAddressSecSchnorrPubKey(pkBytes,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
sigScript, err := SignTxOutput(testingParams,
tx, i, pkScript, hashType,
mkGetKeyPub(map[string]addressToKey{
address.String(): {keyDB, suite, false},
}), mkGetScript(nil), nil)
if err != nil {
t.Errorf("failed to sign output %s: %v", msg,
err)
}
// by the above loop, this should be valid, now sign
// again and merge.
sigScript, err = SignTxOutput(testingParams,
tx, i, pkScript, hashType,
mkGetKeyPub(map[string]addressToKey{
address.String(): {keyDB, suite, false},
}), mkGetScript(nil), sigScript)
if err != nil {
t.Errorf("failed to sign output %s a "+
"second time: %v", msg, err)
}
err = checkScripts(msg, tx, i, sigScript, pkScript)
if err != nil {
t.Errorf("twice signed script invalid for "+
"%s: %v", msg, err)
}
}
}
}
// Pay to PubKey (compressed)
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
var keyDB, pkBytes []byte
var address dcrutil.Address
var err error
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
switch suite {
case dcrec.STEcdsaSecp256k1:
privKey, _ := secp256k1.GeneratePrivateKey()
keyDB = privKey.Serialize()
pk := privKey.PubKey()
// For address generation, consensus rules require using
// a compressed public key. Look up ExtractPkScriptAddrs
// for more details
address, err = dcrutil.NewAddressSecpPubKeyCompressed(pk,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
case dcrec.STEd25519:
keyDB, _, _, _ = edwards.GenerateKey(rand.Reader)
_, pk := edwards.PrivKeyFromBytes(keyDB)
pkBytes = pk.SerializeCompressed()
address, err = dcrutil.NewAddressEdwardsPubKey(pkBytes,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
case dcrec.STSchnorrSecp256k1:
keyDB, _, _, _ = schnorr.GenerateKey(rand.Reader)
privKey := secp256k1.PrivKeyFromBytes(keyDB)
pkBytes = privKey.PubKey().SerializeCompressed()
address, err = dcrutil.NewAddressSecSchnorrPubKey(pkBytes,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
if err := signAndCheck(msg, tx, i, pkScript, hashType,
mkGetKeyPub(map[string]addressToKey{
address.String(): {keyDB, suite, true},
}), mkGetScript(nil)); err != nil {
t.Error(err)
break
}
if err := signBadAndCheck(msg, tx, i, pkScript, hashType,
mkGetKeyPub(map[string]addressToKey{
address.String(): {keyDB, suite, true},
}), mkGetScript(nil)); err == nil {
t.Errorf("corrupted signature validated %s: %v",
msg, err)
break
}
}
}
}
// Pay to PubKey (compressed) with duplicate merge
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
var keyDB, pkBytes []byte
var address dcrutil.Address
var err error
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
switch suite {
case dcrec.STEcdsaSecp256k1:
privKey, _ := secp256k1.GeneratePrivateKey()
keyDB = privKey.Serialize()
pk := privKey.PubKey()
address, err = dcrutil.NewAddressSecpPubKeyCompressed(pk,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
case dcrec.STEd25519:
keyDB, _, _, _ = edwards.GenerateKey(rand.Reader)
_, pk := edwards.PrivKeyFromBytes(keyDB)
pkBytes = pk.SerializeCompressed()
address, err = dcrutil.NewAddressEdwardsPubKey(pkBytes,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
case dcrec.STSchnorrSecp256k1:
keyDB, _, _, _ = schnorr.GenerateKey(rand.Reader)
privKey := secp256k1.PrivKeyFromBytes(keyDB)
pkBytes = privKey.PubKey().SerializeCompressed()
address, err = dcrutil.NewAddressSecSchnorrPubKey(pkBytes,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
sigScript, err := SignTxOutput(testingParams,
tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(nil), nil)
if err != nil {
t.Errorf("failed to sign output %s: %v", msg,
err)
break
}
// by the above loop, this should be valid, now sign
// again and merge.
sigScript, err = SignTxOutput(testingParams,
tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(nil), sigScript)
if err != nil {
t.Errorf("failed to sign output %s a "+
"second time: %v", msg, err)
break
}
err = checkScripts(msg, tx, i, sigScript, pkScript)
if err != nil {
t.Errorf("twice signed script invalid for "+
"%s: %v", msg, err)
break
}
}
}
}
// As before, but with p2sh now.
// Pay to Pubkey Hash (uncompressed)
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
var keyDB, pkBytes []byte
switch suite {
case dcrec.STEcdsaSecp256k1:
privKey, _ := secp256k1.GeneratePrivateKey()
keyDB = privKey.Serialize()
pkBytes = privKey.PubKey().SerializeUncompressed()
case dcrec.STEd25519:
keyDB, _, _, _ = edwards.GenerateKey(rand.Reader)
_, pk := edwards.PrivKeyFromBytes(keyDB)
pkBytes = pk.SerializeUncompressed()
case dcrec.STSchnorrSecp256k1:
keyDB, _, _, _ = schnorr.GenerateKey(rand.Reader)
privKey := secp256k1.PrivKeyFromBytes(keyDB)
pkBytes = privKey.PubKey().SerializeCompressed()
}
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
address, err := dcrutil.NewAddressPubKeyHash(
dcrutil.Hash160(pkBytes), testingParams, suite)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
break
}
scriptAddr, err := dcrutil.NewAddressScriptHash(
pkScript, testingParams)
if err != nil {
t.Errorf("failed to make p2sh addr for %s: %v",
msg, err)
break
}
scriptPkScript, err := PayToAddrScript(
scriptAddr)
if err != nil {
t.Errorf("failed to make script pkscript for "+
"%s: %v", msg, err)
break
}
if err := signAndCheck(msg, tx, i, scriptPkScript,
hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, false},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
})); err != nil {
t.Error(err)
break
}
if err := signBadAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, false},
}), mkGetScript(nil)); err == nil {
t.Errorf("corrupted signature validated %s: %v",
msg, err)
break
}
}
}
}
// Pay to Pubkey Hash (uncompressed) with duplicate merge
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
var keyDB, pkBytes []byte
switch suite {
case dcrec.STEcdsaSecp256k1:
privKey, _ := secp256k1.GeneratePrivateKey()
keyDB = privKey.Serialize()
pkBytes = privKey.PubKey().SerializeUncompressed()
case dcrec.STEd25519:
keyDB, _, _, _ = edwards.GenerateKey(rand.Reader)
_, pk := edwards.PrivKeyFromBytes(keyDB)
pkBytes = pk.SerializeUncompressed()
case dcrec.STSchnorrSecp256k1:
keyDB, _, _, _ = schnorr.GenerateKey(rand.Reader)
privKey := secp256k1.PrivKeyFromBytes(keyDB)
pkBytes = privKey.PubKey().SerializeCompressed()
}
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
address, err := dcrutil.NewAddressPubKeyHash(
dcrutil.Hash160(pkBytes), testingParams, suite)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
break
}
scriptAddr, err := dcrutil.NewAddressScriptHash(
pkScript, testingParams)
if err != nil {
t.Errorf("failed to make p2sh addr for %s: %v",
msg, err)
break
}
scriptPkScript, err := PayToAddrScript(
scriptAddr)
if err != nil {
t.Errorf("failed to make script pkscript for "+
"%s: %v", msg, err)
break
}
_, err = SignTxOutput(testingParams, tx, i,
scriptPkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, false},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
}), nil)
if err != nil {
t.Errorf("failed to sign output %s: %v", msg,
err)
break
}
// by the above loop, this should be valid, now sign
// again and merge.
sigScript, err := SignTxOutput(testingParams,
tx, i, scriptPkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, false},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
}), nil)
if err != nil {
t.Errorf("failed to sign output %s a "+
"second time: %v", msg, err)
break
}
err = checkScripts(msg, tx, i, sigScript, scriptPkScript)
if err != nil {
t.Errorf("twice signed script invalid for "+
"%s: %v", msg, err)
break
}
}
}
}
// Pay to Pubkey Hash (compressed)
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
var keyDB, pkBytes []byte
switch suite {
case dcrec.STEcdsaSecp256k1:
privKey, _ := secp256k1.GeneratePrivateKey()
keyDB = privKey.Serialize()
pkBytes = privKey.PubKey().SerializeCompressed()
case dcrec.STEd25519:
keyDB, _, _, _ = edwards.GenerateKey(rand.Reader)
_, pk := edwards.PrivKeyFromBytes(keyDB)
pkBytes = pk.SerializeCompressed()
case dcrec.STSchnorrSecp256k1:
keyDB, _, _, _ = schnorr.GenerateKey(rand.Reader)
privKey := secp256k1.PrivKeyFromBytes(keyDB)
pkBytes = privKey.PubKey().SerializeCompressed()
}
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
address, err := dcrutil.NewAddressPubKeyHash(
dcrutil.Hash160(pkBytes), testingParams, suite)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
scriptAddr, err := dcrutil.NewAddressScriptHash(
pkScript, testingParams)
if err != nil {
t.Errorf("failed to make p2sh addr for %s: %v",
msg, err)
break
}
scriptPkScript, err := PayToAddrScript(
scriptAddr)
if err != nil {
t.Errorf("failed to make script pkscript for "+
"%s: %v", msg, err)
break
}
if err := signAndCheck(msg, tx, i, scriptPkScript,
hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
})); err != nil {
t.Error(err)
break
}
if err := signBadAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(nil)); err == nil {
t.Errorf("corrupted signature validated %s: %v",
msg, err)
break
}
}
}
}
// Pay to Pubkey Hash (compressed) with duplicate merge
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
var keyDB, pkBytes []byte
switch suite {
case dcrec.STEcdsaSecp256k1:
privKey, _ := secp256k1.GeneratePrivateKey()
keyDB = privKey.Serialize()
pkBytes = privKey.PubKey().SerializeCompressed()
case dcrec.STEd25519:
keyDB, _, _, _ = edwards.GenerateKey(rand.Reader)
_, pk := edwards.PrivKeyFromBytes(keyDB)
pkBytes = pk.SerializeCompressed()
case dcrec.STSchnorrSecp256k1:
keyDB, _, _, _ = schnorr.GenerateKey(rand.Reader)
privKey := secp256k1.PrivKeyFromBytes(keyDB)
pkBytes = privKey.PubKey().SerializeCompressed()
}
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
address, err := dcrutil.NewAddressPubKeyHash(
dcrutil.Hash160(pkBytes), testingParams, suite)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
scriptAddr, err := dcrutil.NewAddressScriptHash(
pkScript, testingParams)
if err != nil {
t.Errorf("failed to make p2sh addr for %s: %v",
msg, err)
break
}
scriptPkScript, err := PayToAddrScript(
scriptAddr)
if err != nil {
t.Errorf("failed to make script pkscript for "+
"%s: %v", msg, err)
break
}
_, err = SignTxOutput(testingParams,
tx, i, scriptPkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
}), nil)
if err != nil {
t.Errorf("failed to sign output %s: %v", msg,
err)
break
}
// by the above loop, this should be valid, now sign
// again and merge.
sigScript, err := SignTxOutput(testingParams,
tx, i, scriptPkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
}), nil)
if err != nil {
t.Errorf("failed to sign output %s a "+
"second time: %v", msg, err)
break
}
err = checkScripts(msg, tx, i, sigScript, scriptPkScript)
if err != nil {
t.Errorf("twice signed script invalid for "+
"%s: %v", msg, err)
break
}
}
}
}
// Pay to PubKey (uncompressed)
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
var keyDB, pkBytes []byte
var address dcrutil.Address
var err error
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
switch suite {
case dcrec.STEcdsaSecp256k1:
privKey, _ := secp256k1.GeneratePrivateKey()
keyDB = privKey.Serialize()
pk := privKey.PubKey()
// For address generation, consensus rules require using
// a compressed public key. Look up ExtractPkScriptAddrs
// for more details
address, err = dcrutil.NewAddressSecpPubKeyCompressed(pk,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
case dcrec.STEd25519:
keyDB, _, _, _ = edwards.GenerateKey(rand.Reader)
_, pk := edwards.PrivKeyFromBytes(keyDB)
pkBytes = pk.SerializeUncompressed()
address, err = dcrutil.NewAddressEdwardsPubKey(pkBytes,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
case dcrec.STSchnorrSecp256k1:
keyDB, _, _, _ = schnorr.GenerateKey(rand.Reader)
privKey := secp256k1.PrivKeyFromBytes(keyDB)
pkBytes = privKey.PubKey().SerializeCompressed()
address, err = dcrutil.NewAddressSecSchnorrPubKey(pkBytes,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
scriptAddr, err := dcrutil.NewAddressScriptHash(
pkScript, testingParams)
if err != nil {
t.Errorf("failed to make p2sh addr for %s: %v",
msg, err)
}
scriptPkScript, err := PayToAddrScript(
scriptAddr)
if err != nil {
t.Errorf("failed to make script pkscript for "+
"%s: %v", msg, err)
}
if err := signAndCheck(msg, tx, i, scriptPkScript,
hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, false},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
})); err != nil {
t.Error(err)
}
if err := signBadAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, false},
}), mkGetScript(nil)); err == nil {
t.Errorf("corrupted signature validated %s: %v",
msg, err)
break
}
}
}
}
// Pay to PubKey (uncompressed) with duplicate merge
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
var keyDB, pkBytes []byte
var address dcrutil.Address
var err error
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
switch suite {
case dcrec.STEcdsaSecp256k1:
privKey, _ := secp256k1.GeneratePrivateKey()
keyDB = privKey.Serialize()
pk := privKey.PubKey()
// For address generation, consensus rules require using
// a compressed public key. Look up ExtractPkScriptAddrs
// for more details
address, err = dcrutil.NewAddressSecpPubKeyCompressed(pk,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
case dcrec.STEd25519:
keyDB, _, _, _ = edwards.GenerateKey(rand.Reader)
_, pk := edwards.PrivKeyFromBytes(keyDB)
pkBytes = pk.SerializeUncompressed()
address, err = dcrutil.NewAddressEdwardsPubKey(pkBytes,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
case dcrec.STSchnorrSecp256k1:
keyDB, _, _, _ = schnorr.GenerateKey(rand.Reader)
privKey := secp256k1.PrivKeyFromBytes(keyDB)
pkBytes = privKey.PubKey().SerializeCompressed()
address, err = dcrutil.NewAddressSecSchnorrPubKey(pkBytes,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
scriptAddr, err := dcrutil.NewAddressScriptHash(
pkScript, testingParams)
if err != nil {
t.Errorf("failed to make p2sh addr for %s: %v",
msg, err)
}
scriptPkScript, err := PayToAddrScript(
scriptAddr)
if err != nil {
t.Errorf("failed to make script pkscript for "+
"%s: %v", msg, err)
}
_, err = SignTxOutput(testingParams,
tx, i, scriptPkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, false},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
}), nil)
if err != nil {
t.Errorf("failed to sign output %s: %v", msg,
err)
break
}
// by the above loop, this should be valid, now sign
// again and merge.
sigScript, err := SignTxOutput(testingParams,
tx, i, scriptPkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, false},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
}), nil)
if err != nil {
t.Errorf("failed to sign output %s a "+
"second time: %v", msg, err)
break
}
err = checkScripts(msg, tx, i, sigScript, scriptPkScript)
if err != nil {
t.Errorf("twice signed script invalid for "+
"%s: %v", msg, err)
break
}
}
}
}
// Pay to PubKey (compressed)
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
var keyDB, pkBytes []byte
var address dcrutil.Address
var err error
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
switch suite {
case dcrec.STEcdsaSecp256k1:
privKey, _ := secp256k1.GeneratePrivateKey()
keyDB = privKey.Serialize()
pk := privKey.PubKey()
address, err = dcrutil.NewAddressSecpPubKeyCompressed(pk,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
case dcrec.STEd25519:
keyDB, _, _, _ = edwards.GenerateKey(rand.Reader)
_, pk := edwards.PrivKeyFromBytes(keyDB)
pkBytes = pk.SerializeCompressed()
address, err = dcrutil.NewAddressEdwardsPubKey(pkBytes,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
case dcrec.STSchnorrSecp256k1:
keyDB, _, _, _ = schnorr.GenerateKey(rand.Reader)
privKey := secp256k1.PrivKeyFromBytes(keyDB)
pkBytes = privKey.PubKey().SerializeCompressed()
address, err = dcrutil.NewAddressSecSchnorrPubKey(pkBytes,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
scriptAddr, err := dcrutil.NewAddressScriptHash(
pkScript, testingParams)
if err != nil {
t.Errorf("failed to make p2sh addr for %s: %v",
msg, err)
break
}
scriptPkScript, err := PayToAddrScript(
scriptAddr)
if err != nil {
t.Errorf("failed to make script pkscript for "+
"%s: %v", msg, err)
break
}
if err := signAndCheck(msg, tx, i, scriptPkScript,
hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
})); err != nil {
t.Error(err)
break
}
if err := signBadAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, false},
}), mkGetScript(nil)); err == nil {
t.Errorf("corrupted signature validated %s: %v",
msg, err)
break
}
}
}
}
// Pay to PubKey (compressed)
for _, hashType := range hashTypes {
for _, suite := range signatureSuites {
for i := range tx.TxIn {
var keyDB, pkBytes []byte
var address dcrutil.Address
var err error
msg := fmt.Sprintf("%d:%d:%d", hashType, i, suite)
switch suite {
case dcrec.STEcdsaSecp256k1:
privKey, _ := secp256k1.GeneratePrivateKey()
keyDB = privKey.Serialize()
pk := privKey.PubKey()
address, err = dcrutil.NewAddressSecpPubKeyCompressed(pk,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
case dcrec.STEd25519:
keyDB, _, _, _ = edwards.GenerateKey(rand.Reader)
_, pk := edwards.PrivKeyFromBytes(keyDB)
pkBytes = pk.SerializeCompressed()
address, err = dcrutil.NewAddressEdwardsPubKey(pkBytes,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
case dcrec.STSchnorrSecp256k1:
keyDB, _, _, _ = schnorr.GenerateKey(rand.Reader)
privKey := secp256k1.PrivKeyFromBytes(keyDB)
pkBytes = privKey.PubKey().SerializeCompressed()
address, err = dcrutil.NewAddressSecSchnorrPubKey(pkBytes,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
}
}
pkScript, err := PayToAddrScript(address)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
scriptAddr, err := dcrutil.NewAddressScriptHash(
pkScript, testingParams)
if err != nil {
t.Errorf("failed to make p2sh addr for %s: %v",
msg, err)
break
}
scriptPkScript, err := PayToAddrScript(
scriptAddr)
if err != nil {
t.Errorf("failed to make script pkscript for "+
"%s: %v", msg, err)
break
}
_, err = SignTxOutput(testingParams,
tx, i, scriptPkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
}), nil)
if err != nil {
t.Errorf("failed to sign output %s: %v", msg,
err)
break
}
// by the above loop, this should be valid, now sign
// again and merge.
sigScript, err := SignTxOutput(testingParams,
tx, i, scriptPkScript, hashType,
mkGetKey(map[string]addressToKey{
address.Address(): {keyDB, suite, true},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
}), nil)
if err != nil {
t.Errorf("failed to sign output %s a "+
"second time: %v", msg, err)
break
}
err = checkScripts(msg, tx, i, sigScript, scriptPkScript)
if err != nil {
t.Errorf("twice signed script invalid for "+
"%s: %v", msg, err)
break
}
}
}
}
// Basic Multisig
for _, hashType := range hashTypes {
for i := range tx.TxIn {
msg := fmt.Sprintf("%d:%d", hashType, i)
privKey1, err := secp256k1.GeneratePrivateKey()
if err != nil {
t.Errorf("failed to generate key: %v", err)
break
}
keyDB1 := privKey1.Serialize()
pk1 := privKey1.PubKey()
suite1 := dcrec.STEcdsaSecp256k1
address1, err := dcrutil.NewAddressSecpPubKeyCompressed(pk1,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
privKey2, err := secp256k1.GeneratePrivateKey()
if err != nil {
t.Errorf("failed to generate key: %v", err)
break
}
keyDB2 := privKey2.Serialize()
pk2 := privKey2.PubKey()
suite2 := dcrec.STEcdsaSecp256k1
address2, err := dcrutil.NewAddressSecpPubKeyCompressed(pk2,
testingParams)
if err != nil {
t.Errorf("failed to make address 2 for %s: %v",
msg, err)
break
}
pkScript, err := MultiSigScript(
[]*dcrutil.AddressSecpPubKey{address1, address2},
2)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
scriptAddr, err := dcrutil.NewAddressScriptHash(
pkScript, testingParams)
if err != nil {
t.Errorf("failed to make p2sh addr for %s: %v",
msg, err)
break
}
scriptPkScript, err := PayToAddrScript(scriptAddr)
if err != nil {
t.Errorf("failed to make script pkscript for "+
"%s: %v", msg, err)
break
}
if err := signAndCheck(msg, tx, i, scriptPkScript,
hashType,
mkGetKey(map[string]addressToKey{
address1.Address(): {keyDB1, suite1, true},
address2.Address(): {keyDB2, suite2, true},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
})); err != nil {
t.Error(err)
break
}
if err := signBadAndCheck(msg, tx, i, pkScript, hashType,
mkGetKey(map[string]addressToKey{
address1.Address(): {keyDB1, suite1, true},
address2.Address(): {keyDB2, suite2, true},
}), mkGetScript(nil)); err == nil {
t.Errorf("corrupted signature validated %s: %v",
msg, err)
break
}
}
}
// Two part multisig, sign with one key then the other.
for _, hashType := range hashTypes {
for i := range tx.TxIn {
msg := fmt.Sprintf("%d:%d", hashType, i)
privKey1, err := secp256k1.GeneratePrivateKey()
if err != nil {
t.Errorf("failed to generate key: %v", err)
break
}
keyDB1 := privKey1.Serialize()
pk1 := privKey1.PubKey()
suite1 := dcrec.STEcdsaSecp256k1
address1, err := dcrutil.NewAddressSecpPubKeyCompressed(pk1,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
privKey2, err := secp256k1.GeneratePrivateKey()
if err != nil {
t.Errorf("failed to generate key: %v", err)
break
}
keyDB2 := privKey2.Serialize()
pk2 := privKey2.PubKey()
suite2 := dcrec.STEcdsaSecp256k1
address2, err := dcrutil.NewAddressSecpPubKeyCompressed(pk2,
testingParams)
if err != nil {
t.Errorf("failed to make address 2 for %s: %v",
msg, err)
break
}
pkScript, err := MultiSigScript(
[]*dcrutil.AddressSecpPubKey{address1, address2},
2)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
scriptAddr, err := dcrutil.NewAddressScriptHash(
pkScript, testingParams)
if err != nil {
t.Errorf("failed to make p2sh addr for %s: %v",
msg, err)
break
}
scriptPkScript, err := PayToAddrScript(scriptAddr)
if err != nil {
t.Errorf("failed to make script pkscript for "+
"%s: %v", msg, err)
break
}
sigScript, err := SignTxOutput(testingParams, tx, i,
scriptPkScript, hashType,
mkGetKey(map[string]addressToKey{
address1.Address(): {keyDB1, suite1, true},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
}), nil)
if err != nil {
t.Errorf("failed to sign output %s: %v", msg,
err)
break
}
// Only 1 out of 2 signed, this *should* fail.
if checkScripts(msg, tx, i, sigScript,
scriptPkScript) == nil {
t.Errorf("part signed script valid for %s", msg)
break
}
// Sign with the other key and merge
sigScript, err = SignTxOutput(testingParams, tx, i,
scriptPkScript, hashType,
mkGetKey(map[string]addressToKey{
address2.Address(): {keyDB2, suite2, true},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
}), sigScript)
if err != nil {
t.Errorf("failed to sign output %s: %v", msg, err)
break
}
err = checkScripts(msg, tx, i, sigScript,
scriptPkScript)
if err != nil {
t.Errorf("fully signed script invalid for "+
"%s: %v", msg, err)
break
}
}
}
// Two part multisig, sign with one key then both, check key dedup
// correctly.
for _, hashType := range hashTypes {
for i := range tx.TxIn {
msg := fmt.Sprintf("%d:%d", hashType, i)
privKey1, err := secp256k1.GeneratePrivateKey()
if err != nil {
t.Errorf("failed to generate key: %v", err)
break
}
keyDB1 := privKey1.Serialize()
pk1 := privKey1.PubKey()
suite1 := dcrec.STEcdsaSecp256k1
address1, err := dcrutil.NewAddressSecpPubKeyCompressed(pk1,
testingParams)
if err != nil {
t.Errorf("failed to make address for %s: %v",
msg, err)
break
}
privKey2, err := secp256k1.GeneratePrivateKey()
if err != nil {
t.Errorf("failed to generate key: %v", err)
break
}
keyDB2 := privKey2.Serialize()
pk2 := privKey2.PubKey()
suite2 := dcrec.STEcdsaSecp256k1
address2, err := dcrutil.NewAddressSecpPubKeyCompressed(pk2,
testingParams)
if err != nil {
t.Errorf("failed to make address 2 for %s: %v",
msg, err)
break
}
pkScript, err := MultiSigScript(
[]*dcrutil.AddressSecpPubKey{address1, address2},
2)
if err != nil {
t.Errorf("failed to make pkscript "+
"for %s: %v", msg, err)
}
scriptAddr, err := dcrutil.NewAddressScriptHash(
pkScript, testingParams)
if err != nil {
t.Errorf("failed to make p2sh addr for %s: %v",
msg, err)
break
}
scriptPkScript, err := PayToAddrScript(scriptAddr)
if err != nil {
t.Errorf("failed to make script pkscript for "+
"%s: %v", msg, err)
break
}
sigScript, err := SignTxOutput(testingParams, tx, i,
scriptPkScript, hashType,
mkGetKey(map[string]addressToKey{
address1.Address(): {keyDB1, suite1, true},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
}), nil)
if err != nil {
t.Errorf("failed to sign output %s: %v", msg,
err)
break
}
// Only 1 out of 2 signed, this *should* fail.
if checkScripts(msg, tx, i, sigScript,
scriptPkScript) == nil {
t.Errorf("part signed script valid for %s", msg)
break
}
// Sign with the other key and merge
sigScript, err = SignTxOutput(testingParams, tx, i,
scriptPkScript, hashType,
mkGetKey(map[string]addressToKey{
address1.Address(): {keyDB1, suite1, true},
address2.Address(): {keyDB2, suite2, true},
}), mkGetScript(map[string][]byte{
scriptAddr.Address(): pkScript,
}), sigScript)
if err != nil {
t.Errorf("failed to sign output %s: %v", msg, err)
break
}
// Now we should pass.
err = checkScripts(msg, tx, i, sigScript,
scriptPkScript)
if err != nil {
t.Errorf("fully signed script invalid for "+
"%s: %v", msg, err)
break
}
}
}
}
type tstInput struct {
txout *wire.TxOut
sigscriptGenerates bool
inputValidates bool
indexOutOfRange bool
}
type tstSigScript struct {
name string
inputs []tstInput
hashType SigHashType
compress bool
scriptAtWrongIndex bool
}
var coinbaseOutPoint = &wire.OutPoint{
Index: (1 << 32) - 1,
}
// Pregenerated private key, with associated public key and pkScripts
// for the uncompressed and compressed hash160.
var (
privKeyD = []byte{0x6b, 0x0f, 0xd8, 0xda, 0x54, 0x22, 0xd0, 0xb7,
0xb4, 0xfc, 0x4e, 0x55, 0xd4, 0x88, 0x42, 0xb3, 0xa1, 0x65,
0xac, 0x70, 0x7f, 0x3d, 0xa4, 0x39, 0x5e, 0xcb, 0x3b, 0xb0,
0xd6, 0x0e, 0x06, 0x92}
thisPubKey = secp256k1.PrivKeyFromBytes(privKeyD).PubKey()
thisAddressUnc, _ = dcrutil.NewAddressPubKeyHash(
dcrutil.Hash160(thisPubKey.SerializeUncompressed()),
testingParams, dcrec.STEcdsaSecp256k1)
uncompressedPkScript, _ = PayToAddrScript(thisAddressUnc)
thisAddressCom, _ = dcrutil.NewAddressPubKeyHash(
dcrutil.Hash160(thisPubKey.SerializeCompressed()),
testingParams, dcrec.STEcdsaSecp256k1)
compressedPkScript, _ = PayToAddrScript(thisAddressCom)
shortPkScript = []byte{0x76, 0xa9, 0x14, 0xd1, 0x7c, 0xb5,
0xeb, 0xa4, 0x02, 0xcb, 0x68, 0xe0, 0x69, 0x56, 0xbf, 0x32,
0x53, 0x90, 0x0e, 0x0a, 0x88, 0xac}
)
// Pretend output amounts.
const coinbaseVal = 2500000000
const fee = 5000000
var sigScriptTests = []tstSigScript{
{
name: "one input uncompressed",
inputs: []tstInput{
{
txout: wire.NewTxOut(coinbaseVal, uncompressedPkScript),
sigscriptGenerates: true,
inputValidates: true,
indexOutOfRange: false,
},
},
hashType: SigHashAll,
compress: false,
scriptAtWrongIndex: false,
},
{
name: "two inputs uncompressed",
inputs: []tstInput{
{
txout: wire.NewTxOut(coinbaseVal, uncompressedPkScript),
sigscriptGenerates: true,
inputValidates: true,
indexOutOfRange: false,
},
{
txout: wire.NewTxOut(coinbaseVal+fee, uncompressedPkScript),
sigscriptGenerates: true,
inputValidates: true,
indexOutOfRange: false,
},
},
hashType: SigHashAll,
compress: false,
scriptAtWrongIndex: false,
},
{
name: "one input compressed",
inputs: []tstInput{
{
txout: wire.NewTxOut(coinbaseVal, compressedPkScript),
sigscriptGenerates: true,
inputValidates: true,
indexOutOfRange: false,
},
},
hashType: SigHashAll,
compress: true,
scriptAtWrongIndex: false,
},
{
name: "two inputs compressed",
inputs: []tstInput{
{
txout: wire.NewTxOut(coinbaseVal, compressedPkScript),
sigscriptGenerates: true,
inputValidates: true,
indexOutOfRange: false,
},
{
txout: wire.NewTxOut(coinbaseVal+fee, compressedPkScript),
sigscriptGenerates: true,
inputValidates: true,
indexOutOfRange: false,
},
},
hashType: SigHashAll,
compress: true,
scriptAtWrongIndex: false,
},
{
name: "hashType SigHashNone",
inputs: []tstInput{
{
txout: wire.NewTxOut(coinbaseVal, uncompressedPkScript),
sigscriptGenerates: true,
inputValidates: true,
indexOutOfRange: false,
},
},
hashType: SigHashNone,
compress: false,
scriptAtWrongIndex: false,
},
{
name: "hashType SigHashSingle",
inputs: []tstInput{
{
txout: wire.NewTxOut(coinbaseVal, uncompressedPkScript),
sigscriptGenerates: true,
inputValidates: true,
indexOutOfRange: false,
},
},
hashType: SigHashSingle,
compress: false,
scriptAtWrongIndex: false,
},
{
name: "hashType SigHashAnyoneCanPay",
inputs: []tstInput{
{
txout: wire.NewTxOut(coinbaseVal, uncompressedPkScript),
sigscriptGenerates: true,
inputValidates: true,
indexOutOfRange: false,
},
},
hashType: SigHashAnyOneCanPay | SigHashAll,
compress: false,
scriptAtWrongIndex: false,
},
{
name: "hashType non-standard",
inputs: []tstInput{
{
txout: wire.NewTxOut(coinbaseVal, uncompressedPkScript),
sigscriptGenerates: true,
inputValidates: false,
indexOutOfRange: false,
},
},
hashType: 0x04,
compress: false,
scriptAtWrongIndex: false,
},
{
name: "invalid compression",
inputs: []tstInput{
{
txout: wire.NewTxOut(coinbaseVal, uncompressedPkScript),
sigscriptGenerates: true,
inputValidates: false,
indexOutOfRange: false,
},
},
hashType: SigHashAll,
compress: true,
scriptAtWrongIndex: false,
},
{
name: "short PkScript",
inputs: []tstInput{
{
txout: wire.NewTxOut(coinbaseVal, shortPkScript),
sigscriptGenerates: false,
indexOutOfRange: false,
},
},
hashType: SigHashAll,
compress: false,
scriptAtWrongIndex: false,
},
{
name: "valid script at wrong index",
inputs: []tstInput{
{
txout: wire.NewTxOut(coinbaseVal, uncompressedPkScript),
sigscriptGenerates: true,
inputValidates: true,
indexOutOfRange: false,
},
{
txout: wire.NewTxOut(coinbaseVal+fee, uncompressedPkScript),
sigscriptGenerates: true,
inputValidates: true,
indexOutOfRange: false,
},
},
hashType: SigHashAll,
compress: false,
scriptAtWrongIndex: true,
},
{
name: "index out of range",
inputs: []tstInput{
{
txout: wire.NewTxOut(coinbaseVal, uncompressedPkScript),
sigscriptGenerates: true,
inputValidates: true,
indexOutOfRange: false,
},
{
txout: wire.NewTxOut(coinbaseVal+fee, uncompressedPkScript),
sigscriptGenerates: true,
inputValidates: true,
indexOutOfRange: false,
},
},
hashType: SigHashAll,
compress: false,
scriptAtWrongIndex: true,
},
}
// Test the sigscript generation for valid and invalid inputs, all
// hashTypes, and with and without compression. This test creates
// sigscripts to spend fake coinbase inputs, as sigscripts cannot be
// created for the MsgTxs in txTests, since they come from the blockchain
// and we don't have the private keys.
func TestSignatureScript(t *testing.T) {
t.Parallel()
nexttest:
for i := range sigScriptTests {
tx := wire.NewMsgTx()
output := wire.NewTxOut(500, []byte{OP_RETURN})
tx.AddTxOut(output)
for range sigScriptTests[i].inputs {
txin := wire.NewTxIn(coinbaseOutPoint, 500, nil)
tx.AddTxIn(txin)
}
var script []byte
var err error
for j := range tx.TxIn {
var idx int
if sigScriptTests[i].inputs[j].indexOutOfRange {
t.Errorf("at test %v", sigScriptTests[i].name)
idx = len(sigScriptTests[i].inputs)
} else {
idx = j
}
script, err = SignatureScript(tx, idx,
sigScriptTests[i].inputs[j].txout.PkScript,
sigScriptTests[i].hashType, privKeyD, dcrec.STEcdsaSecp256k1,
sigScriptTests[i].compress)
if (err == nil) != sigScriptTests[i].inputs[j].sigscriptGenerates {
if err == nil {
t.Errorf("passed test '%v' incorrectly",
sigScriptTests[i].name)
} else {
t.Errorf("failed test '%v': %v",
sigScriptTests[i].name, err)
}
continue nexttest
}
if !sigScriptTests[i].inputs[j].sigscriptGenerates {
// done with this test
continue nexttest
}
tx.TxIn[j].SignatureScript = script
}
// If testing using a correct sigscript but for an incorrect
// index, use last input script for first input. Requires > 0
// inputs for test.
if sigScriptTests[i].scriptAtWrongIndex {
tx.TxIn[0].SignatureScript = script
sigScriptTests[i].inputs[0].inputValidates = false
}
// Validate tx input scripts
var scriptFlags ScriptFlags
for j := range tx.TxIn {
vm, err := NewEngine(sigScriptTests[i].inputs[j].txout.
PkScript, tx, j, scriptFlags, 0,
nil)
if err != nil {
t.Errorf("cannot create script vm for test %v: %v",
sigScriptTests[i].name, err)
continue nexttest
}
err = vm.Execute()
if (err == nil) != sigScriptTests[i].inputs[j].inputValidates {
if err == nil {
t.Errorf("passed test '%v' validation incorrectly: %v",
sigScriptTests[i].name, err)
} else {
t.Errorf("failed test '%v' validation: %v",
sigScriptTests[i].name, err)
}
continue nexttest
}
}
}
}
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